30-APR-1789 :- George Washington oath of the first President of the United States of America.

The Electoral College elected Washington unanimously as the first president in 1789, and again in the 1792 election; he remains the only president to have received 100 percent of the electoral votes.John Adams, who received the next highest vote total, was elected Vice President. At his inauguration, Washington took the oath of office as the first President of the United States of America on April 30, 1789, on the balcony of Federal Hall in New York City.